Thermo-Disc VAV ceiling diffusers

Products

VAV Diffusers

The thermo-disc diffuser is lightweight, easy to install and ideal as a retrofit solution. They aim to provide comfort in buildings that are mostly well ventilated, but experience specific areas that are either too hot or too cold and cause a reduction in comfort. This is often a result of internal factors such as computers, photocopiers and a high number of occupants but can also be attributed to a buildings orientation and lack of shading.

The thermo-disc diffusers are available in two styles; square to square and square to round, and neck sizes ranging from 150 to 300mm. Each neck size is available in finished dimensions of 495 and 595mm square.

Air Flow

Air flow movement from a Rickard Thermo-Disc ceiling diffuser in a typical office application.

Range dimensions

Specifications and performance

Neck size (mm)	Style	Part Number		Neck Total Pressure (Pa)
Neck size (mm)	Style	595mm x 595mm		20	30	40	50
150		VSD1504S495	Air flow (L/s)	62	76	88	98
		VSD1504S495	Throw (m)	2.0	2.1	2.7	3.0
		VCD1504S595	Throw (m)	2.0	2.1	2.7	3.0
		VCD1504S595	NC Level (NC)	22	26	31	34
200		VSD2004S595	Air flow (L/s)	108	131	151	169
		VSD2004S595	Throw (m)	2.0	2.6	3.0	3.2
		VCD2004S595	Throw (m)	2.0	2.6	3.0	3.2
		VCD2004S595	NC Level (NC)	23	27	28	29
250		VSD2504S595	Air flow (L/s)	145	176	201	226
		VSD2504S595	Throw (m)	2.4	2.6	3.2	3.5
		VCD2504S595	Throw (m)	2.4	2.6	3.2	3.5
		VCD2504S595	NC Level (NC)	25	27	29	31
300		VSD3004S595	Air flow (L/s)	176	211	245	275
		VSD3004S595	Throw (m)	2.5	2.8	3.3	3.7
		VCD3004S595	Throw (m)	2.5	2.8	3.3	3.7
		VCD3004S595	NC Level (NC)	27	28	30	32